Improvement in corn-smellers



2Shets--Sheeti.

' R. M. M CG BATH corn-Shellers No. 137,942. Patented A rma aJs.

n 'nnngg AM. PHomilrnasnAPn/c m m: {ossonus's moms) NITED STATES ROBERTMGGRATH, OF LA FAYETTE, INDIANA.

IMPROVEMENT IN @ORN-SHELLERS.

Specification forming part of Letters Patent No. 137,942, dated April15, 1873 application filed July 8,1872.

To all whom it may concern:

Be it known that I, ROBERT M. MGGRATH, of La Fayette, in the State ofIndiana, have invented a Combined Corn Sheller and Cleaner, of which thefollowing is a specification:

My invention has reference to that class of machines whereby the cornwill be shelled from the cob and perfectly cleaned at one continuousoperation; and consists in the relative arrangement, with the shellingapparatus, of the sieves and fan-blast; and, further, in thecombination, with the elevator, of a seive or perforated plate, chute,and recess, all as more fully herein set forth.

The drawing hereof shows such a machine, Figure 1 being a view bylongitudinal section; Fig. 2, a View of one side of the machine; Fig. 3,a view of the other side of the machine; and Fig. 4, an end view.

The several parts of the machine are indicated thus:

a, the hopper; b, a rotating toothed shaft, surrounded by a cylinder, 0,constituting the sheller; d, the cleaner, made up of sieves or riddlesand chutes; e, the fan-blower; f, an elevator; g, the crank shaft. Abeveled Wheel, h, on the crank-shaft gears into a like wheel, a, on theend of the shaft 1), by which means the toothed shaft b is rotated.Cylinder c is shown made up of rods, surrounded by a shell. In beingshelled the ears of corn will, therefore, be acted upon between theteeth and the rods, the corn passingbetween the rods, and the cobspassing out of the end j of the cylinder. The greater part of the cornwill pass through the riddles or sieves k and l into the receptacle m,and be delivered through the outlet it. Such grains as may be blown outfrom the cleaner from off the sieves k and I will drop upon theperforated plate 0, passing through it into the chute p and into therecess g, from which, by the buckets r of the elevator, they will becarried up and delivin its frame, and suspending-bars to. It derives itsreciprocating motion from the rod and eccentric .r on the shaft *1. Thepulley of shaft y, by a band, is moved by the pulley of shaft 2 of thefan-blower e, shaft 2 deriving its motion from the crank-shaft g, fromwhich shaft, also, the shaft 2 of the elevator has its motion, thenecessary gearing therefor being shown by Fig. 2.

To the construction of the shelling apparatus proper I here lay noclaim, the ad vantages of my peculiar arrangements being that the blastfrom the fan is enabled to act on a dispersed stratum of corn, as thecorn falls directly from the sheller onto the sieve, and not upon achute which interrupts the blast, thus cleaning the corn more readilyand effectually than were it subjected only to a blast in such stream aswould fall from the edge of a chute.

What I claim is A 1- The combination and peculiar arrangement with thecorn-sheller, consisting of the hop per a, toothed shaft 1), androd-cylinder c, of the sieves k and l, chutes u and o, plate t, and

'famblast e, substantially as herein set forth.

2. The arrangement of the perforated plate 0, chute 1), and recess q,with the elevator f, as and for the purposes herein recited.

This specification signed this 24th day of May, 1872.

ROBERT M. MOGRATH.

Witnesses:

Tnos. T. EVERETT, ROBERT EVERETT.

